Mozilla Firefox ESR < 45.7 Multiple Vulnerabilities

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Windows host contains a web browser that is affected by
multiple vulnerabilities.

Description :

The version of Mozilla Firefox ESR installed on the remote Windows
host is prior to 45.7. It is, therefore, affected by multiple
vulnerabilities :

- Mozilla developers and community members Christian
Holler, Gary Kwong, Andre Bargull, Jan de Mooij, Tom
Schuster, and Oriol reported memory safety bugs present
in Firefox 50.1 and Firefox ESR 45.6. Some of these
bugs showed evidence of memory corruption and we
presume that with enough effort that some of these
could be exploited to run arbitrary code.
(CVE-2017-5373)

- JIT code allocation can allow for a bypass of ASLR and
DEP protections leading to potential memory corruption
attacks. (CVE-2017-5375)

- Use-after-free while manipulating XSL in XSLT documents
(CVE-2017-5376)

- Hashed codes of JavaScript objects are shared between
pages. This allows for pointer leaks because an object's
address can be discovered through hash codes, and also
allows for data leakage of an object's content using
these hash codes. (CVE-2017-5378)

- A potential use-after-free found through fuzzing during
DOM manipulation of SVG content. (CVE-2017-5380)

- URLs containing certain unicode glyphs for alternative
hyphens and quotes do not properly trigger punycode
display, allowing for domain name spoofing attacks in
the location bar. (CVE-2017-5383)

- WebExtension scripts can use the 'data:' protocol to
affect pages loaded by other web extensions using this
protocol, leading to potential data disclosure or
privilege escalation in affected extensions.
(CVE-2017-5386)

- The JSON viewer in the Developer Tools uses insecure
methods to create a communication channel for copying
and viewing JSON or HTTP headers data, allowing for
potential privilege escalation. (CVE-2017-5390)

- A use-after-free vulnerability in the Media Decoder
when working with media files when some events are
fired after the media elements are freed from memory.
(CVE-2017-5396)

Note that Tenable Network Security has extracted the preceding
description block directly from the Mozilla security advisories.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues.

See also :

https://www.mozilla.org/en-US/security/advisories/mfsa2017-02/
https://bugzilla.mozilla.org/show_bug.cgi?id=1285833
https://bugzilla.mozilla.org/show_bug.cgi?id=1285960
https://bugzilla.mozilla.org/show_bug.cgi?id=1297361
https://bugzilla.mozilla.org/show_bug.cgi?id=1311687
https://bugzilla.mozilla.org/show_bug.cgi?id=1312001
https://bugzilla.mozilla.org/show_bug.cgi?id=1319070
https://bugzilla.mozilla.org/show_bug.cgi?id=1322107
https://bugzilla.mozilla.org/show_bug.cgi?id=1322315
https://bugzilla.mozilla.org/show_bug.cgi?id=1322420
https://bugzilla.mozilla.org/show_bug.cgi?id=1323338
https://bugzilla.mozilla.org/show_bug.cgi?id=1324716
https://bugzilla.mozilla.org/show_bug.cgi?id=1325200
https://bugzilla.mozilla.org/show_bug.cgi?id=1325877
https://bugzilla.mozilla.org/show_bug.cgi?id=1325938
https://bugzilla.mozilla.org/show_bug.cgi?id=1328251
https://bugzilla.mozilla.org/show_bug.cgi?id=1328834
https://bugzilla.mozilla.org/show_bug.cgi?id=1329403
https://bugzilla.mozilla.org/show_bug.cgi?id=1330769
https://bugzilla.mozilla.org/show_bug.cgi?id=1331058

Solution :

Upgrade to Mozilla Firefox ESR version 45.7 or later.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.3
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

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